<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.14"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>SPHinXsys: SPHINXsys/src/shared/meshes/my_memory_pool.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectlogo"><img alt="Logo" src="logo.png"/></td>
  <td id="projectalign" style="padding-left: 0.5em;">
   <div id="projectname">SPHinXsys
   &#160;<span id="projectnumber">alpha version</span>
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.14 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(function() {
  initMenu('',true,false,'search.php','Search');
  $(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div id="nav-path" class="navpath">
  <ul>
<li class="navelem"><a class="el" href="dir_3dc1dabd28ba78e072d14d3fcfc90454.html">SPHINXsys</a></li><li class="navelem"><a class="el" href="dir_48ea983704c43b6d88c1fa3f4d09e369.html">src</a></li><li class="navelem"><a class="el" href="dir_0a0d9ef1793521534f0094f317758287.html">shared</a></li><li class="navelem"><a class="el" href="dir_61d72b4dd46479d55af927dc89c7a78c.html">meshes</a></li>  </ul>
</div>
</div><!-- top -->
<div class="header">
  <div class="headertitle">
<div class="title">my_memory_pool.h</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef MY_MEMORY_POOL_H</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define MY_MEMORY_POOL_H</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#define TBB_PREVIEW_MEMORY_POOL 1</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;</div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#include &quot;tbb/memory_pool.h&quot;</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#include &quot;tbb/enumerable_thread_specific.h&quot;</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &lt;list&gt;</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="keyword">using namespace </span><a class="code" href="namespacetbb.html">tbb</a>;</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="class_my_memory_pool.html">   17</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_my_memory_pool.html">MyMemoryPool</a></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;{</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#ifdef __EMSCRIPTEN__</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;    std::allocator&lt;T&gt; my_pool; <span class="comment">// memory pool</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;    std::list&lt;T&gt; data_list;    <span class="comment">// list of all nodes allocated</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;    tbb::memory_pool&lt;std::allocator&lt;T&gt;&gt; my_pool;            <span class="comment">// memory pool</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    <span class="keyword">typedef</span> tbb::memory_pool_allocator&lt;T&gt; pool_allocator_t; <span class="comment">// memory allocator</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    std::list&lt;T, pool_allocator_t&gt; data_list;               <span class="comment">// list of all nodes allocated</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    std::list&lt;T *&gt; free_list; <span class="comment">// list of all free nodes</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    <span class="comment">// constructor</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#ifdef __EMSCRIPTEN__</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    <a class="code" href="class_my_memory_pool.html">MyMemoryPool</a>() : data_list(my_pool){};</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <a class="code" href="class_my_memory_pool.html">MyMemoryPool</a>() : data_list(pool_allocator_t(my_pool)){};</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="comment">// deconstructor</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    ~<a class="code" href="class_my_memory_pool.html">MyMemoryPool</a>(){</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        <span class="comment">// my_pool.recycle();</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    };</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    <span class="comment">// prepare an available node</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    T *malloc()</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    {</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;        <span class="keywordflow">if</span> (free_list.empty())</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        {</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;            data_list.emplace_back(T());</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;            <span class="keywordflow">return</span> (&amp;data_list.back());</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        }</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;        <span class="keywordflow">else</span></div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        {</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;            T *result = free_list.front();</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;            free_list.pop_front();</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;            <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        }</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    };</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="comment">// relinquish an unused node</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordtype">void</span> free(T *ptr)</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    {</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        free_list.push_back(ptr);</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    };</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <span class="comment">// return the total number of nodes allocated</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keywordtype">int</span> capacity()</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    {</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        <span class="keywordflow">return</span> data_list.size();</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    };</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    <span class="comment">// return the number of current available nodes</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    <span class="keywordtype">int</span> available_node()</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    {</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        <span class="keywordflow">return</span> free_list.size();</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    };</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;};</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="preprocessor">#endif // MY_MEMORY_POOL_H</span></div><div class="ttc" id="namespacetbb_html"><div class="ttname"><a href="namespacetbb.html">tbb</a></div><div class="ttdef"><b>Definition:</b> particle_sorting.h:38</div></div>
<div class="ttc" id="class_my_memory_pool_html"><div class="ttname"><a href="class_my_memory_pool.html">MyMemoryPool</a></div><div class="ttdoc">Note that the data package T should has a default constructor. </div><div class="ttdef"><b>Definition:</b> my_memory_pool.h:17</div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.14
</small></address>
</body>
</html>
